The public repudiation of an extremist person or statement perceived to have some association with a politician or his party.
It’s a strategy designed to signal to centrist voters to show that the politician is not beholden to traditional, and sometimes unpopular, interest groups associated with the party.
Robert Schlesinger: “Back in the summer of 1992, then-Arkansas Gov. Bill Clinton criticized rapper Sister Souljah after she made offensive remarks about blacks killing whites instead of each other. The moment quickly entered the political lexicon as shorthand for a politician rebuking an extremist in his or her base in order to demonstrate to independents that they are not beholden to the party’s core special interests.”
Joan Vennochi: “This so-called ‘Sister Souljah moment’ — a calculated denunciation of an extremist position or special interest group — wrapped Clinton in a warm centrist glow just in time for the general election.”